31x+21x=100

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Solution for 31x+21x=100 equation: 



31x+21x=100

We move all terms to the left:

31x+21x-(100)=0

We add all the numbers together, and all the variables

52x-100=0

We move all terms containing x to the left, all other terms to the right

52x=100

x=100/52

x=1+12/13

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